| RMReed Machinery, INC. Only Location | Worcester | MA | — | ◇ UNVERIFIED |
| RReed-rico | Bristol | RI | — | ◇ UNVERIFIED |
| RCRegal Cutting Tools Div Yg-1 CO LTD | South Beloit | IL | — | ◇ UNVERIFIED |
| RIRegal Ind Donora Plt | Donora | PA | — | ◇ UNVERIFIED |
| RHREIT Holdings LLC | Dayton | OH | — | ◇ UNVERIFIED |
| RFReliable Forge Die & Eng | Fraser | MI | — | ◇ UNVERIFIED |
| RMReliable Machine & Manufacturing CO INC | Hiawatha | IA | — | ◇ UNVERIFIED |
| RMRepair Machine and Engineering INC | Gardena | CA | — | ◇ UNVERIFIED |
| RDRepublic Drill/apt CORP. | Miami | FL | — | ◇ UNVERIFIED |
| RGResearch Group Three INC | Anaheim | CA | — | ◇ UNVERIFIED |
| RTResearch Tool Corporation | Ovid | MI | — | ◇ UNVERIFIED |
| REReuland Electric CO | Brea | CA | — | ◇ UNVERIFIED |
| R2RH 2031 Calvin, LLC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| RBRichard Brothers Punch Co* | Memphis | TN | — | ◇ UNVERIFIED |
| RSRichard Sheet Metal | Paterson | NJ | — | ◇ UNVERIFIED |
| RMRichards Micro-tool, LLC | Plymouth | MA | — | ◇ UNVERIFIED |
| RJRichardson Joyce | Newbury Park | CA | — | ◇ UNVERIFIED |
| RTRichard Tool & Die CORP | New Hudson | MI | — | ◇ UNVERIFIED |
| RTRichmond Tooling INC | Colonial Heights | VA | — | ◇ UNVERIFIED |
| RPRid-lom Precision Mfg. CORP. | Rochester | NY | — | ◇ UNVERIFIED |
| RIR & I Enterprises, INC. | Brownsville | TX | — | ◇ UNVERIFIED |
| RMRios Machine & Tool | Shelton | CT | — | ◇ UNVERIFIED |
| RPRival Precision Manufacturing Rpm LLC | Alvarado | TX | — | ◇ UNVERIFIED |
| RTRjs Tool & Gage INC | Birmingham | MI | — | ◇ UNVERIFIED |
| RJR. J. Zeman Tool & Mfg. Co., INC. | Waukesha | WI | — | ◇ UNVERIFIED |
| RCR.k. Cylindrical Grinding INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| RERlb Engineering Company INC | Valencia | CA | — | ◇ UNVERIFIED |
| RTRml Tool and Die Company | Cleveland | OH | — | ◇ UNVERIFIED |
| RTRoark Tools | Chester | NJ | — | ◇ UNVERIFIED |
| RTRobbins Tools Die & Mfg CO INC | Henderson | TN | — | ◇ UNVERIFIED |
| RORobert O'dell Designs | Santa Rosa | CA | — | ◇ UNVERIFIED |
 Robert Wall Enterprises Dba Sawing Services | Chatsworth | CA | — | ◇ UNVERIFIED |
| RTRochester Tool & Cutter | Rochester Hills | MI | — | ◇ UNVERIFIED |
| RMRocky Mountain Machine Shop Inc.- Salt Lake City Machine Shop | Salt Lake City | UT | — | ◇ UNVERIFIED |
| RPRodak Plastics CO. INC. | Hayward | CA | — | ◇ UNVERIFIED |
| RPRoebuck Precision Machine, INC | Goldsboro | NC | — | ◇ UNVERIFIED |
| RTRoehr Tool Solutions | Sterling | MA | — | ◇ UNVERIFIED |
| RTRogers Tool Works | Rogers | AR | — | ◇ UNVERIFIED |
| RSRolled Shapes & Engineering INC | Fraser | MI | — | ◇ UNVERIFIED |
| RTRoma Tool INC | Rochester Hills | MI | — | ◇ UNVERIFIED |
| RGRonald Gromak Estate | Santa Maria | CA | — | ◇ UNVERIFIED |
| RSRosey Steel Rule Die Co., INC. | Dalton | GA | — | ◇ UNVERIFIED |
| RCRoto-die Company INC | Anaheim | CA | — | ◇ UNVERIFIED |
| RMRoyal Maple Metal Sales LLC | Mc Bain | MI | — | ◇ UNVERIFIED |
| RPRoyal Products | Hauppauge | NY | — | ◇ UNVERIFIED |
| RRR & R Tool & Die Company | Villa Ridge | MO | — | ◇ UNVERIFIED |
| RSRte St. Charles, INC. | Saint Charles | IL | — | ◇ UNVERIFIED |
| RERtt Engineering .com | Chatsworth | CA | — | ◇ UNVERIFIED |
| RCRuch Carbide Burs, INC. | Willow Grove | PA | — | ◇ UNVERIFIED |
| RDRule Designs INC | Minneapolis | MN | — | ◇ UNVERIFIED |
